Features
- CPU: RL78 core, Max. 24MHz
 - Voltage: 1.8V to 5.5V
 - Package: 64-pin BGA, 48 to 80-pin LFQFP
 - Memory: SRAM Max. 8KB, Program Flash Max. 128KB
 - Timer: 16-bit Timer (ch) x 9, 8-bit Timer (ch) x 6, Watchdog Timer (ch) x 1, 12-bit Interval Timer x 1 ch, Sampling output Timer Detector x 6ch input,3ch output, external signal sampler x 1ch
 - PWM: PWM Output x 7
 - Analog function: 10-bit A/D Converter (ch) x 3, Delta-Sigma A/D Converter, 8-bit D/A Converter (ch) x 1, 12-bit D/A Converter (ch) x 1
 - On-chip Oscillator Freq. (MHz): High-Speed: 24, 16, 12, 8, 6, 4, 3, 2, 1MHz
Low-speed: 15kHz - Others: RTC, Power-On Reset, Low Voltage Detection
 
Description
The RL78/H1D microcontroller includes high precision analog functions such as Delta-Sigma A/D converter, SAR A/D converter, Programmable Gain amplifiers, Operational amplifier, and 8-bit/12-bit D/A converter. It also has a built-in LCD controller/driver which makes the RL78/H1D well suited for healthcare devices, especially blood pressure monitor.
Parameters
| Attributes | Value | 
|---|---|
| Program Memory (KB) | 64, 96, 128 | 
| Data Flash (KB) | 4 | 
| RAM (KB) | 5.5, 8 | 
| Carrier Type | Full Carton (Tray), Full Tray (Tray), Tape & Reel | 
| Supply Voltage (V) | 1.8 - 5.5, 2.4 - 5.5 | 
| I/O Ports | 29, 36, 53, 63 | 
| Temp. Range (°C) | Ta = -40 to +85 | 
| Operating Freq (Max) (MHz) | 24 | 
| USB FS (host ch/device ch) | ( 0 / 0 ) | 
| SCI or UART (ch) | 3, 4 | 
| SPI (ch) | 3 | 
| I2C (#) | 4 | 
| CAN (ch) | 0 | 
| CAN-FD (ch) | 0 | 
| Wireless | No | 
| LIN (#) | 1 | 
| 16-Bit Timer (ch) (#) | 8, 10 | 
| 12-Bit A/D Converter (ch) | 0 | 
| 10-Bit A/D Converter (ch) | 3 | 
| 24-Bit Sigma-Delta A/D Converter (ch) | 0, 1, 4, 5 | 
| 12-Bit D/A Converter (ch) | 0, 1 | 
| 10-Bit D/A Converter (ch) (#) | 0 | 
| 8-Bit D/A Converter (ch) | 0, 1 | 
| Capacitive Touch Sensing Unit (ch) | 0 | 
| Segment LCD Controller | Yes | 
| Security & Encryption | No | 
Application Block Diagrams
| 
             | 
              TMR Sensor-Based Flow Meter
 The TMR sensor-based flow meter eliminates the need for mechanical metering, enables lower power consumption, and extends battery life. 
 | 
            
Additional Applications
- Healthcare
 - Metering
 
Applied Filters:
Loading